| 1 | Two things
a. is 140mm wall framing getting popular now?
b. what is the % increase in cost moving from 90mm to 140mm wall framing? including batts ang_ck - 2021-02-15 23:50:00 |
| 2 | ang_ck wrote:
Two things
a. is 140mm wall framing getting popular now?
b. what is the % increase in cost moving from 90mm to 140mm wall framing? including batts
You must use 140mm framing over a certain wall height. apollo11 - 2021-02-16 09:39:00 |
| 3 | apollo11 wrote:
You must use 140mm framing over a certain wall height. thank you ang_ck - 2021-02-16 11:08:00 |
| 4 | apollo11 wrote:
You must use 140mm framing over a certain wall height. And because of the wind factor |
| 5 | I was wrong of course. I thought 140mm framing was done because of a thicker R value insulation requirement. ang_ck - 2021-02-16 13:14:00 |
| 6 | ang_ck wrote:
I was wrong of course. I thought 140mm framing was done because of a thicker R value insulation requirement.
mainstream housing, not a chance. most kiwis really don't care and anything that costs more eats into profit.
even with high performance housing its one option.
they can do the offset stud method (sorry the name eludes me) 140mm top/bottom plate, 90mm studs.
or external insulation. tweake - 2021-02-16 18:16:00 |
| 7 | tweake wrote:
mainstream housing, not a chance. most kiwis really don't care and anything that costs more eats into profit.
even with high performance housing its one option.
they can do the offset stud method (sorry the name eludes me) 140mm top/bottom plate, 90mm studs.
or external insulation.
The house being built next door is 140mm LVL at 400 centers. Monopitch, so about 4 meters high at one end. Massive steel RSJ frame at the tall end. The structural design guys just went bonkers on it, to the bewilderment of the builder. Next door in our old bungalow, we are wondering what catastrophe they were designing for. apollo11 - 2021-02-16 18:55:00 |
| 8 | apollo11 wrote:
The house being built next door is 140mm LVL at 400 centers. Monopitch, so about 4 meters high at one end. Massive steel RSJ frame at the tall end. The structural design guys just went bonkers on it, to the bewilderment of the builder. Next door in our old bungalow, we are wondering what catastrophe they were designing for.
our new shed is like that. its like they doubled up on everything "just in case". tweake - 2021-02-16 20:15:00 |
| 9 | apollo11 wrote:
The house being built next door is 140mm LVL at 400 centers. Monopitch, so about 4 meters high at one end. Massive steel RSJ frame at the tall end. The structural design guys just went bonkers on it, to the bewilderment of the builder. Next door in our old bungalow, we are wondering what catastrophe they were designing for.
That is one of the reasons for high build costs now; designers, engineers, planners and especially the consent-issuers are so risk-averse that everything is designed for worst-case conditions then doubled. The amount of steel, timber and concrete in a house today is twice what was used in 1990 and not many of them fell over. |
| 10 | apollo11 wrote:
The house being built next door is 140mm LVL at 400 centers. Monopitch, so about 4 meters high at one end. Massive steel RSJ frame at the tall end. The structural design guys just went bonkers on it, to the bewilderment of the builder. Next door in our old bungalow, we are wondering what catastrophe they were designing for. 4M high?? wow. I can imagine how much to heat up the place. ang_ck - 2021-02-16 21:13:00 |
| 11 | ang_ck wrote:
4M high?? wow. I can imagine how much to heat up the place.
The high end of the house is the lounge area, so a big expanse of north facing windows. Plus they will probably be insulating the hell out of it. apollo11 - 2021-02-16 21:24:00 |
| 12 | tweake wrote:
our new shed is like that. its like they doubled up on everything "just in case".
Yep. Governments legislate and there are always 'unintended consequences'
that the ordinary person ends up paying for. apollo11 - 2021-02-16 21:28:00 |
| 13 | tweake wrote:
our new shed is like that. its like they doubled up on everything "just in case".
I watched them installing the three posts that will hold up the end of the single car-port at the back of the house. 150mm square steel posts, 10mm wall section. Sunk below ground into a massive steel and cement sleeper foundation. It's grossly over-engineered. apollo11 - 2021-02-16 21:35:00 |
| 14 | tweake wrote:
mainstream housing, not a chance. most kiwis really don't care and anything that costs more eats into profit.
even with high performance housing its one option.
they can do the offset stud method (sorry the name eludes me) 140mm top/bottom plate, 90mm studs.
or external insulation. the other cheaper option is to have external walls on 140mm and internal on 90mm. Is it much cheaper? do you know, or is it better to go 140mm all the way ang_ck - 2021-02-16 22:38:00 |
| 15 | ang_ck wrote:
the other cheaper option is to have external walls on 140mm and internal on 90mm. Is it much cheaper? do you know, or is it better to go 140mm all the way
I've not seen 140mm used for internal walls myself. That would be an extra 50mm strip out of all of your rooms that would be wasted space. apollo11 - 2021-02-16 22:58:00 |
| 16 | apollo11 wrote:
I've not seen 140mm used for internal walls myself. That would be an extra 50mm strip out of all of your rooms that would be wasted space. thank you for feedback ang_ck - 2021-02-17 11:50:00 |
| 17 | ang_ck wrote:
the other cheaper option is to have external walls on 140mm and internal on 90mm. Is it much cheaper? do you know, or is it better to go 140mm all the way
i've seen places (many many years ago) that had 140mm internal walls, however it was a huge double story place in an exposed location. absolutely wonderful place. the big thick walls suited the look.
by mem tho it only had 90mm insulation. even 140mm still has a lot of thermal bridging. tweake - 2021-02-17 18:00:00 |
| 18 | I install fascia and gutter so on a different site each day, saw a framed 300mm square coloumn last week, holding up the middle of a 200x 100 beam, spanning maybe 5mtrs, had 16 pieces of 100x50 forming the coloum, when any other day you would see a 90x90mm post doing the same thing,
Full price of 100x50 is around $6 per mtr so nearly $100 worth |
| 19 | masturbidder wrote:
That is one of the reasons for high build costs now; designers, engineers, planners and especially the consent-issuers are so risk-averse that everything is designed for worst-case conditions then doubled. The amount of steel, timber and concrete in a house today is twice what was used in 1990 and not many of them fell over.
Agreed, but you will never win that argument. Every one who can stick their oar in and have a say does so and guess who pays, you the customer . Building costs are the cause of so many people not being able to get a start in life. hammer23 - 2021-02-18 09:24:00 |
| 20 | hammer23 wrote:
Agreed, but you will never win that argument. Every one who can stick their oar in and have a say does so and guess who pays, you the customer . Building costs are the cause of so many people not being able to get a start in life.
I wonder if we need to look at the way we build from the very beginnings? We start off with pinus radiata, which grows twice as fast as in Europe, we don't bother pruning most of it, and we harvest it early. This creates 'junk food' wood, soft and quick to rot. We then have to treat it with all manner of toxins to give it longevity and as we are now finding out, we have to use more of it in our buildings than we previously thought. At least when we had native wood to waste, we were starting off with decent raw materials. apollo11 - 2021-02-18 10:35:00 |
| 21 | nzshooter01 wrote:
I install fascia and gutter so on a different site each day, saw a framed 300mm square coloumn last week, holding up the middle of a 200x 100 beam, spanning maybe 5mtrs, had 16 pieces of 100x50 forming the coloum, when any other day you would see a 90x90mm post doing the same thing,
Full price of 100x50 is around $6 per mtr so nearly $100 worth
thats probably done for looks.
one place i looked at had fake columns holding up a deck. just a post in the centre doing the work. stupid thing was there was room for the downspout but they put it down through the wall instead, and now its pours water into the house when it rains.
what people do for looks. tweake - 2021-02-18 18:29:00 |
| 22 | tweake wrote:
thats probably done for looks.
one place i looked at had fake columns holding up a deck. just a post in the centre doing the work. stupid thing was there was room for the downspout but they put it down through the wall instead, and now its pours water into the house when it rains.
what people do for looks.
Yes im sure its for looks but you could have formed the same 300mm sq with 4 studs, 1 in each corner |
| 23 | apollo11 wrote:
I wonder if we need to look at the way we build from the very beginnings? We start off with pinus radiata, which grows twice as fast as in Europe, we don't bother pruning most of it, and we harvest it early. This creates 'junk food' wood, soft and quick to rot. We then have to treat it with all manner of toxins to give it longevity and as we are now finding out, we have to use more of it in our buildings than we previously thought. At least when we had native wood to waste, we were starting off with decent raw materials. Plus the framing should be H.3 treated not H1. rodeorunch - 2021-02-19 05:25:00 |
| 24 | rodeorunch wrote:
Plus the framing should be H.3 treated not H1.
If you aren't using a cavity drainage system then I think it has to be.
I've always had a bit of a chuckle about the fact that gib is calculated into the bracing equation. I just don't trust the strength of the stuff after it has been up for a few years. Perhaps the use of MGO board internally would make more sense? apollo11 - 2021-02-19 11:34:00 |
| 25 | Gosh my 50s house with 100mm heart rimu framing must be like gold now. bryshaw - 2021-02-20 08:06:00 |
| 26 | bryshaw wrote:
Gosh my 50s house with 100mm heart rimu framing must be like gold now.
Why? apollo11 - 2021-02-20 11:10:00 |
| 27 | We did 140mm framing on our house think it was round 7K more on 400m2,
Allows for higher R on Insulation,increased structural strength etc, internal walls still 90mm. tsjcf - 2021-02-20 21:39:00 |
